From: Tom Lane <tgl@sss.pgh.pa.us>
To: Ravi Krishna <s.ravikrishna@aim.com>
Cc: pgsql-admin@postgresql.org
Subject: Re: WAL and O_DIRECT
Date: Thu, 14 May 2015 11:55:33 -0400
Message-ID: <21483.1431618933@sss.pgh.pa.us> (raw)
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Ravi Krishna <s.ravikrishna@aim.com> writes:
> However our DB2 folks are raising a concern that PG WAL writes may not be crash safe, unless we are using write back technology in SAN or SSD , which we are using.
What's your point exactly? If the underlying hardware does not provide
durable writes, there's nothing PG (or DB2) can do to fix that.
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, s.ravikrishna@aim.com
Subject: Re: WAL and O_DIRECT
In-Reply-To: <21483.1431618933@sss.pgh.pa.us>
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